Welcome to Rahsaan's World!!

Apache Web Server vs Tornado Web Server

2011-03-09T13:20:00.001-08:00

You most be asking yourself, How Tornado Web is different from what Apache Server does, Here is a little break down:

*Tornado is a platform for developing internet applications, for handling the underlying communications and such. It doesn't "do" anything out of the box--you've got to program it. All Python ;-)

*Apache is an internet application, of sorts. Upon install, you have a working web server which can serve up static and dynamic web pages. Beyond that, it can be extended to do more than that, if you wish.

To sum it all up, they are two different things, one is a pure Web server and one is a Web framework with a built-in event driven server..

Tornado is good for constructing high-end ad-hoc Web services..

High Performance Network

2010-11-17T08:50:00.000-08:00

Remote Directory Memory Access over converged Ethernet (RoCE) for those times when low network latency and high capacity are important. Because RoCE bypasses system and kernel calls to place data directly into remote system memory with less CPU overhead, the High Performance Networking is ideal for high-speed data processing applications that require low latency, for speeding up cluster locking, which is especially useful in massively parallel computer clusters. or for scaling up applications on distributed systems without investing in specialized networking technologies.

1. Calling the technology “RDMA over” instead of “InfiniBand over” is overly vague and intentionally deceptive. We already have “RDMA over Ethernet” — except we’ve been calling it iWARP. Choosing “RoCE” is somewhat like talking about “Storage over Ethernet” instead of “Fibre Channel over Ethernet.” Sure, FCoE is storage over ethernet, but so is iSCSI.

RHEL/CentOS 5.X Test Bed - ISCSI Over TCP/IP + RAID5 + LVM + EXT3

2010-10-22T15:45:00.000-07:00

I am trying to create a testbed for practice for the following in
Subject line..

1) But the thing is that i have only one HDD in my box.. The issue
that i am having is i am creating empty files using the 'dd' command.
attaching the files to a loopX device, i can get the RAID5 working..
but as soon as i try to top LVM on top of RAID 5, i get some error of
some sort about otcl..

is there any way i cant get this to work?

2) The other way i got working was,, i created 4 empty files using
'dd'.. attached to to iscsi target, client connects through iscsi
initiator, client see new LUN/HDD as sdX, than i create RAID5, Than
LVM on top, Than Ext3, this works

But as i soon as i reboot, the order everything comes up as fails, LVM
starts first before MD Dameon, MD Dameon starts before ISCSI
initiator, so everything fails. So for this to work the correct way
for me, i need option 1

Lexus Branded Stories: The Most Advanced Driving Simulator In The World!

2010-10-22T14:41:00.000-07:00

It began with a need for a deeper understanding of the driver and grew into an innovation so revolutionary, it could change the way we move through the world, and how we drive tomorrow.